What You Need to Know About Radon Testing in Colorado
Radon is something you can’t see, smell, or taste, but it could be present in your home right now. This naturally occurring radioactive gas forms when uranium breaks down in soil, rock, and water. It then seeps into homes through cracks in the foundation, crawl spaces, or well water systems. Once inside, it can accumulate to levels that are hazardous to your health. That’s where radon testing comes in.
Colorado is known for its scenic landscapes and outdoor lifestyle, but it’s also one of the states with the highest levels of radon. In fact, the Environmental Protection Agency (EPA) has designated the entire state as a Zone 1 area, meaning it’s likely that homes here have elevated radon levels. Because of this, radon testing isn’t just a suggestion—it’s a smart step for every homeowner, buyer, or seller in Colorado.
Why Radon Testing Matters
Radon is the second leading cause of lung cancer in the United States, only behind smoking. Long-term exposure to high levels of radon increases the risk of developing lung cancer, even in people who have never smoked. That’s a serious health concern, especially in a state like Colorado where radon is more common.
The tricky part is that radon doesn’t give you any warning signs. You won’t know if it’s in your home without a proper test. That’s why radon testing is so important—it’s the only way to determine whether your indoor air is safe or not. If high levels are found, the issue can be fixed with a mitigation system that vents the gas out of your home before it causes harm.
When to Get a Radon Test
If you’re buying a home in Colorado, a radon test should be part of your inspection process. Many real estate transactions in the state already include radon testing as a standard step. But even if you’re not in the market for a new home, you should consider testing if you’ve never done it before or if it’s been a few years since your last test.
Seasonal changes can affect radon levels, so winter is often considered a good time to test. That’s when homes are usually closed up tightly, which can lead to more accurate readings of worst-case exposure levels.
You should also retest your home after any major renovations or changes to your foundation, HVAC system, or ventilation. Even installing new windows or finishing a basement can shift the airflow in your home and impact how radon enters and accumulates.
How Radon Testing Works
Radon testing can be done with either short-term or long-term test kits. Short-term tests usually last between two and seven days and are a great first step if you’re trying to get quick results. Long-term tests last for 90 days or more and provide a better average over time.
Most homeowners opt to hire a certified radon professional, especially during a real estate transaction. A professional will set up specialized monitoring equipment and interpret the results for you. If the radon level in your home is 4.0 picocuries per liter (pCi/L) or higher, the EPA recommends mitigation.
In Colorado, where radon is prevalent, many homeowners opt to install a mitigation system as a preventive measure. These systems typically involve a pipe-and-fan setup that pulls radon from beneath the home and releases it safely outside.
The Cost of Peace of Mind
The cost of a radon test is relatively low compared to the health risks associated with ignoring it. Basic short-term tests are affordable, and professional testing is still within reach for most homeowners. If mitigation is needed, the cost can vary depending on the size and design of your home, but many find it to be a worthwhile investment in their long-term health.
In Colorado, where radon is a widespread concern, some counties and local health departments even offer discounts or resources to help offset testing and mitigation costs. It’s worth checking with your local officials to see what’s available.
FAQs About Radon Testing in Colorado
- What is radon and why is it dangerous?
Radon is a radioactive gas that forms naturally in the ground. Long-term exposure to high levels can lead to lung cancer, even in non-smokers. - How often should I test my home for radon?
It’s a good idea to test every two to five years or after major home renovations. If you’ve never tested your home, now is a great time to start. - What do I do if my home has high radon levels?
You can install a radon mitigation system that vents the gas outside, reducing indoor levels to a safer range. - Can new homes have radon problems?
Yes. Radon is a soil gas, so it can enter any home regardless of age. In fact, energy-efficient new homes may be more tightly sealed and more prone to radon buildup. - Is radon testing required in Colorado?
While not legally required statewide, many real estate transactions include radon testing. Given Colorado’s high radon levels, it’s strongly encouraged.
Closing Thoughts
Living in Colorado means enjoying stunning views and outdoor adventures, but it also means being aware of radon. Radon testing is a quick and reliable way to protect your family from a serious health risk that often goes undetected. Whether you’re buying, selling, or simply want peace of mind, a radon test is a smart move. Don’t leave it up to chance, know your radon levels and take action if needed.
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